Percolating apparatus



@y 12, 193.1., Q BAUER ET AL, 1,805,159

` P-scomfrme A PPARATUS' Filed Sept. 50, 1529 5 Sheets-Sheet 1 @dalINVENTOR` j? Obert' E Laar Georg@ J lf H1/uf ATTORNEYS.

May 12, 1931., I R. BAUER ET Al. 1,805,159

PERCOLATING APPARATUS Filed Sept. 30, 1929 3 Sheets-Sheet 2 k= Munnik..

a 45 06a INVENTUM.-

Q v 1705er? Bauer 68 y By Guay@ Jl/ Lui/'wif WI''IZBSS: MZMALATTORNEY/5.

May'lZ, 1931. BAU@ ET AL, LSQ

PERCLTING APPARATUS Filed sepi. so, 192e s sneetssneef :s

Patented May 12, 1931 UNITED STATES PATENT FFQE ROBERT k:BAUER ANDGEORGE J. LUDWG, F GRAND RAIDS, MICHIGAN PERCOLATING APPARATUSApplication led September 30, 1929.

The present invention relates to percolating apparatus,particularly suchas is employed for making hot beverages, such as coffee; and its objectis, generally, to provide an improved apparatus of that character; andmore particularly, to provide in such apparatus a plurality ofpercolators through which the percolating liquid passes successively;and further, to provide improved means for supplying the percolatorswith measured amounts of the substance (as ground coffee) to bepercolated therein; and further, to provide improved means forregulating the amount of prepared percolate,

(as the coffee beverage) to the amount thereof expected to be consumedwithin a predetermined time, thus preventing an accumulation of thepercolate unconsumed for so long a period as to'develop undesirablequalities, such as tannic acid in coffee percolate.

`These and any other and more specific 0bjects hereinafter appearing areattained by, and the invention finds preferable embodi- 28 ment in, theapparatus hereinafter particularly described in the body of thisspecification and illustrated by the accompanying drawings, in which:-V

Figure 1 is a front elevational view of 3o percolating apparatus used inmaking coffee beverage;

Figure 2 is a top plan view thereof;

Figure 3 is a front elevational View of certain parts of the same, the'front walls of the liquid containers being partially broken away andcertain parts being shown in central vertical section taken on lineB-Sof Figure 2;

Figure 4 is a vertical sectional view of a o plurality of percolatorsand adjacent parts taken onrradial planes corresponding to line 4 4 ofFigures 5 and 6; Y

Figure 5 is a top plan view of the base plate thereof;

Figure 6 is a horizontal sectional view of parts thereof taken on line 66 of Figure 4;

Figure 7 is a View in perspective of the rotatable charging memberthereof; and

Serial No. 396,020.

Figure 8 is an elevational view of anelectric circuit closer and openeror switch.

In the embodiment of the invention illustrated by these drawings apercolating apparatus or organization for preparing a hot beverage, suchas coffee, is shown which apparatus and its operation are described asfollows:

Upon a suitable supporting frame 1 is mounted a container or tank 2 towhich water for making the beverageis supplied through a pipe 3. Seatedin this water con tainer and heated by the hot water therein are thepercolate containers d, 5 and 6, the last (6) containing the completelyprepared beverage and being received in a recess or alcove 8 in thefront side of the water container 2.

The water in container 2 and the percolate in containers 4L, 5 and 6 areheated by gas supplied through the pipe 9 to the burner plates 10, 10beneath the water container. Above the aforementioned parts, is locateda combination or plurality (three in the shown construction) ofpercolators 11, 12, 13, the chamber 14 of each being adapted to containa charge of the substance to be percolated, as ground coffee, and thepercolators being circularly disposed in a horizontal plane about theaxis of a vertical shaft 15.

This combination of percolators comprises a stationary base plate 16having circular openings 17, 18', 19 therethrough with straining screens2O constituting the bottoms of the chambers of the percolatorsrespectively and supporting their charges of ground coffee, throughwhich charges and screens the coifeepercolate passes downwardly. Thisbase plate has an upwardlyextending annular rimf21, receiving a 'Hatcircular member 22 lying on the base plate and rotatably carried by saidshaft which extends through a bearing 28 in the base plate. This member22 has a plurality (eight in the structure illustrated) of openings 211therethrough adapted to be brought by the rotation of said member intoregistration with the screened openings of the base plate and forming insuch registration the internal sidewalls 25 of the percolators,

ll.. The.' e Water :[5 .L

passingr gas to a `amers fl, 1 removable Screens shi g ,Y 5; d thismotor i1 thus turning' the member ou v; the switch is Carried.

a 'float (5leo] ST in h '-l\ l 1 f) Y( ...e 5.1 me wier. tu. 11.1

rtim low level.

1. Q waged poltlon .ailier .1. the flow of to the burners: l() is; shutoli when the temner 2 rises train out solid e entering these and memerm79 me shaft d coffee to the 'jfi r passing the lve l 'er in con* shaft lform 77 on the motors S5.-

th the Worm Wheel 8O ou tud wete arm u'ltl 'cola vai'. ipe Gil. so

r in eontai The pereolate emi wate ree.

uf reepeetively to s 5 'turn 11i the line l1 'ed 1 the he motor pvp).-

.-ffh

7 l Containers.

brin iirsst per( 78 ou a s bv the threu 5 am 70. 7l

,.V 1 propel 4 ereelator il.

fi li aud passed or propelled 1nd through the pump iudie.. d a taillerhis th ted .Ll ed. tlirou percol: tl'irough pipe dal. to the tainer il..b' .a

l be 111g."- lf" rough tl In this process EUO SC SQ@ m0;

Hw. wm l 1 me l CH suil the ated gistration Sereene-.l opel by hot Waterte through pip pipe to 'u oli'ee From t md propell a hopper 10 when.euch op.`

2 gli 20 tailler 2 l'.

member Q through Whle tron members 15 of one of beingr roi; into throuThe ors in series,

ly dispoeed provided with 1.7.. toms; of' the pereoly and a vent for theper the base peuings: the per- Q0 illustrated b ie drawings orhereliibeore described.

.tors compriscular si post-ed o pereol 15g e11- iiitended to be 1li'"ruetion of the parmeml er o rl] die" three pereola ber may, of course,be combeing uiization oli' the eharaeter derality of havn .orethreughce; ila 1 :ailing the sides of Non.

7e have shown but any 1mm therein.

inveuti n )y detalle of con imeut thereo' We claim:

In au orgz '1 1 en, a. piu mpg: a. base pl 'ming' the be reapecti.

prised The pm uted out iu 'tue claims, is not to be limited te, or ltieular embed tl latere;

31g peeiele-Si reuit of) te ci trom through the ated pu CUYYfLn s pivotpipe trs.

65 tilted ou it been rotated far eue-ugh of exl'lausted eo The indie del type sp 'hroug and 111 regis leaduw position elerti colatorsrespectively, said members openings being adapted to contain a charge otthe substance to be percolated and being brought intopercolator-itorming registration with the screened openings respectivelyby the rotation of said member.

2. In an organization ot the character described, a pluralitj,T otpercolators comprising: a base plate having circularly disposed openingstherethrough provided With screens forming the bottoms or" thepercolators respectively and a vent for the percolated substance; amember on the base plate having circularly disposed openingstherethrough formino` the sides of the percolators respectively, saidmembers openings being adapted to contain a charge of the substance tobe percolated and being brought into percolator-igorming registrationWith the screened openings respectively by the rotation of said member;a cover plate on said member having an intake port for the substance tobe percolated, said members openings being brought into receivingregistration With said port by the rotation of said member.

8. In an organization of the character described: a Water container; aplurality of percolators; a plurality or containers receiving percolatefrom the percolators respectively; a pump tor propelling Water from thewater container to one or" the percolators; a pump tor propellingpercolate from the container ot said percolator to another of saidpercolators; an electric motor for operating the pumps; a switch in themotors electric circuit; a float in one of the percolate containers foroperating the switch.

et. In an organization of the character described, a plurality ofpercolators comprising: a base plate having circularly disposed openingstherethrough provided With screens forming the bottoms oi thepercolators respectiveli a member on the base plate having circularlydisposed openings therethrough formino' the sides oi the percolatorsrespectively, said members openings being adapted to contain a charge ofthe substance to be percolated and being brought into percolator-tormingregistration with the screened openings respectively by the rotation or"said member; an electric motor for rotating said member; a switch in themotors electric circuit; a iioat in one of the percolate containers foroperating the switch.

5. In an organization of the character described; a percolator structurecomprising: a base `plate having an opening therethrough provided with ascreen forming the bottom of the percolator; a rotatable member on thebase plate having an opening therethrough forming the sides or" thepercolator and being adapted to contain a charge of the substance to bepercolated and brought into percolatorforming registration with thescreened openn ing by the rotation of said member.

6. In an organization of the character described, a percolator structurecomprising: a base plate having an opening therethrough provided with ascreen Jforming the bottom of the percolator and a vent tor thepercolated substance angularly spaced from the screened opening; arotatable member on the base plate having an opening adapted to containa charge of the substance to be percolated and brought intopercolator-forming registration with the screened opening by therotation of said member and into registration With the vent fordischarging the percolated substance.

7. In an organization of the character described, a percolator structurecomprising: a base plate having an opening therethrough provided With ascreen forming the bottom of the percolator; a rotatable member on thebase plate having an opening therethrough forming the sides of thepercolator and being adapted to contain a charge of the substance to bepercolated and brought into percolator-forming registration with thescreened opening by the rotation of said member; a cover plate on saidmember having an intake port for the substance to be percolated, saidmembers opening -being brought into receiving registration With saidport by the rotation ot said member.

8. In an organization of the character described, a percolator structurecomprising: a base plate having an opening therethrough provided With ascreen forming the bottom of the percolator and a vent for thepercolated substance angularly spaced from the screened opening; arotatable member on the base plate having an opening adapted to containa charge of the substance to be percolated and brought intopercolatorforming registration with the screened opening by the rotationof said member and into registration with the vent for discharging thepercolated substance; a cover plate on said member having an intake portin registration With the vent.

9. In an organization of the character described, a percolator structurecomprising: a base plate having an opening therethrough provided With ascreen forming the bottom of the percolator and a vent for thepercolated substance angularly spaced from the screened opening; arotatable member on the base plate having an opening adapted to containavcharge of the substance to be percolated and brought intopercolator-torming registration With the screened opening by therotation of said member and into registration With the vent fordischarging the percolated substance; a cover plate on said memberhaving an intake port in registration with the vent; means for passing astream of Water through the port, the vent and the opening of saidmember in regstration therewith for discharging tha percolatedsubstance.

In testimony whereof We have hereunto set our hands :it Grund Rapids,Michigan, this 10th Cay of Siep'iembcr, 19:29.

RO E T BAUER. GEORGE J. LUDVIG.

